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AS numbers

AS21283 A1 Slovenija

AS21283 is operated by A1 Slovenija and registered with RIPE NCC (SI) since 2001-10-16.

It announces 18 IPv4 and 3 IPv6 prefixes, 100% of them RPKI valid.

RIPE RIS sees 12 upstream and peer networks and 33 downstream networks next to it.

PeeringDB lists it as a Cable/DSL/ISP network at 2 internet exchanges and 1 facility. Its peering policy is selective.

NameA1 Slovenija
Registry (RIR)RIPE NCC
CountrySlovenia (SI)
Delegated on2001-10-16
Network typeCable/DSL/ISP, Europe
Peering policySelective
IRR as-setAS-A1SI
Prefixes (IPv4 / IPv6)18 / 3
RPKI valid100% (21 / 21)
Upstreams and peers12
Downstream networks33
WebsiteA1.si

Routing health

  • AS21283 announces 18 IPv4 and 3 IPv6 prefixes.
  • All 21 announced prefixes are RPKI valid.
  • 12 upstreams and peers, 33 downstream networks seen.

For every check with the fix (IRR route objects, the RPKI state of each route, reverse DNS and the registration), run the full network report.

Announced prefixes 21

  • 46.122.0.0/15
  • 46.122.64.0/21
  • 46.122.96.0/21
  • 46.164.0.0/18
  • 62.84.224.0/20
  • 80.95.224.0/20
  • 85.10.0.0/19
  • 85.10.32.0/20
  • 90.157.128.0/17
  • 92.37.0.0/17
  • 94.127.24.0/21
  • 109.239.176.0/20
  • 146.212.0.0/16
  • 185.28.8.0/22
  • 185.173.52.0/22
  • 188.64.24.0/21
  • 212.18.32.0/19
  • 213.157.224.0/19
  • 2a00:1a20::/29
  • 2a00:1a20::/32
  • 2001:15c0::/29

Upstreams and peers 12

The networks RIPE RIS sees next to AS21283 in BGP paths, the most visible first.

Peering

Peering policy: Selective. Suggested max-prefix limits: 200 IPv4, 25 IPv6. PeeringDB record

Internet exchanges 2
ExchangePortsSpeedRoute server
SIX SI1100GYes
VIX120GYes
Facilities 1
FacilityCityCountry
SIX SI Ljubljana Technology ParkLjubljanaSI

More about AS21283

Sources: RIR delegation data and PeeringDB (updated daily); routing from RIPEstat (RIPE NCC RIS and RPKI), refreshed daily. Routing data from 2026-11-13 20:31 UTC. The country is where the AS number was registered, not necessarily where the network operates.